<template>
  <el-form :model="form" ref="form" :rules="rules" class="form">
    <el-form-item class="form-item" prop="username">
      <el-input
        placeholder="用户名手机"
        v-model="form.username"
        @focus="hideErrMsg('username')"
      >
      </el-input>
    </el-form-item>

    <el-form-item class="form-item" prop="captcha">
      <el-input
        placeholder="验证码"
        v-model="form.captcha"
        @focus="hideErrMsg('captcha')"
      >
        <template slot="append">
          <el-button @click="handleSendCaptcha">
            发送验证码
          </el-button>
        </template>
      </el-input>
    </el-form-item>

    <el-form-item class="form-item" prop="nickname">
      <el-input
        placeholder="你的名字"
        v-model="form.nickname"
        @focus="hideErrMsg('nickname')"
      >
      </el-input>
    </el-form-item>

    <el-form-item class="form-item" prop="password">
      <el-input
        placeholder="密码"
        type="password"
        v-model="form.password"
        @focus="hideErrMsg('password')"
      ></el-input>
    </el-form-item>

    <el-form-item class="form-item" prop="checkPassword">
      <el-input
        placeholder="确认密码"
        type="password"
        v-model="form.checkPassword"
        @focus="hideErrMsg('checkPassword')"
      >
      </el-input>
    </el-form-item>

    <el-button class="submit" type="primary" @click="handleRegSubmit">
      注册
    </el-button>
  </el-form>
</template>

<script>
export default {
  data() {
    // 确认密码
    const validatePass = (rule, value, callback) => {
      if (value === "") {
        callback(new Error("请再次输入密码"));
      } else if (value !== this.form.password) {
        callback(new Error("两次输入密码不一致!"));
      } else {
        callback();
      }
    };
    return {
      // 表单数据
      form: {
        username: "", // 登录用户名/手机
        password: "", // 登录密码
        checkPassword: "", // 确认密码
        nickname: "", // 昵称
        captcha: "" // 手机验证码
      },
      rules: {
        username: [
          { required: true, message: "请输入用户名/手机", trigger: "blur" },
          {
            min: 6,
            max: 11,
            message: "长度在 6 到 11 个字符",
            trigger: "blur"
          },
          { pattern: /^\d+$/, message: "用户名只能输入数字", trigger: "blur" }
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur"
          }
        ],
        checkPassword: [
          {
            validator: validatePass,
            trigger: "blur"
          }
        ],
        nickname: [
          { required: true, message: "请输入昵称", trigger: "blur" },
          {
            min: 6,
            max: 15,
            message: "长度在 6 到 15 个字符",
            trigger: "blur"
          }
        ],
        captcha: [
          { required: true, message: "请输入验证码", trigger: "blur" },
          {
            min: 6,
            max: 6,
            message: "长度只能是6个字符",
            trigger: "blur"
          }
        ]
      }
    };
  },
  methods: {
    // 验证码
    handleSendCaptcha() {
      if (!this.form.username) {
        this.$confirm("手机号码不能为空", "提示", {
          confirmButtonText: "确定",
          showCancelButton: false,
          type: "warning"
        });
        return;
      }
      if (this.form.username.length !== 11) {
        this.$confirm("手机号码格式错误", "提示", {
          confirmButtonText: "确定",
          showCancelButton: false,
          type: "warning"
        });
        return;
      }

      this.$axios({
        url: "/captchas",
        method: "post",
        data: {
          tel: this.form.username
        }
      }).then(res => {
        console.log(res.data.code);
        const { code } = res.data;
        this.$confirm(`模拟手机验证码为：${code}`, "提示", {
          confirmButtonText: "确定",
          showCancelButton: false,
          type: "warning"
        });
        this.form.captcha = res.data.code;
      });
    },
    // 注册
    handleRegSubmit() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          // 注册提交
          const { checkPassword, ...props } = this.form;

          this.$axios({
            url: "/accounts/register",
            method: "post",
            data: props
          }).then(res => {
            if (res.data.token) {
              this.$message.success("注册成功");
              this.$emit("tologin");
            }
          });
        }
      });
    },
    // 清理表单项错误信息
    hideErrMsg(propName) {
      this.$refs.form.clearValidate(propName);
    }
  }
};
</script>

<style lang="less" scoped>
.form {
  padding: 25px;
}

.form-item {
  margin-bottom: 20px;
}

.form-text {
  font-size: 12px;
  color: #409eff;
  text-align: right;
  line-height: 1;
}

.submit {
  width: 100%;
  margin-top: 10px;
}
</style>
